MTDH overexpression, for instance, is associated with the invasion and metastasis in BC, and it has been suggested that the molecular mechanism of this metastasis is related to the induction of the epithelial mesenchymal transition (EMT) in BC and microRNA-26a can inhibit the mRNA and protein levels of MTDH [33,45]. The gene discussed is MTDH; the disease is breast cancer.